Spitting, slurping food and skipping queues are the kind of "bad social graces" some Chinese tourists display while on holiday, the state-run Xinhua news agency said.

"The increasing number of Chinese tourists travelling abroad may be a huge new source of income to destination countries, but that won't prevent complaints against individuals from reflecting badly on all of China," the report said.

"The media in Singapore reports that hotel staff are upset with Chinese tourists spitting in their rooms and smoking in bed. The hotels have had to shampoo the carpet and replace bed linen after a Chinese group passed through."